Research Interests:

History and philosophy of science, particularly the roles of experiment.

Professor Franklin's research is on the history and philosophy of science, with particular emphasis on the role of experiment in physics. He has done historical studies on parity conconservation, CP-violation, and Millikan's oil drop experiment. On the philosophical side, he has worked on the Duhem-Quine problem, the question of how one can localize support or refutation, and on confirmation theory, using a Bayesian approach. He has also discussed an epistemology of experiment, a set of strategies that provide rational belief in experimental results. These strategies distinguish between a valid experimental result and an artifact created by the experimental apparatus. More recently he has worked on the fallibility and corrigibility of experimental results and the resolution of discordant results. He has also completed studies of the interaction of theory and experiment in the development of the theory of weak interactions from Fermi to V-A, a history of atomic parity violation experiments and their relation to the Weinberg- Salam unified theory of electroweak interactions. He has also worked on the history of the "Fifth Force" in gravity and a review of the history of the proposed 17-keV neutrino. He has written a history of the neutrino, from its proposal in 1931 to the present and his most recent book Selectivity and Discord: Two Problems of Experiment deals with the issues of experimenter bias and of the resolution of discordant experimental results. His most recent book, "Ending the Mendel-Fisher Controversy," is on the history of genetics.

Selected Publications:

Shifting Standards: Experiments in Particle Physics in the Twentieth Century. (2013), University of Pittsburgh Press.